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Publication numberUS5469194 A
Publication typeGrant
Application numberUS 08/242,540
Publication dateNov 21, 1995
Filing dateMay 13, 1994
Priority dateMay 13, 1994
Fee statusPaid
Also published asWO1995031765A1
Publication number08242540, 242540, US 5469194 A, US 5469194A, US-A-5469194, US5469194 A, US5469194A
InventorsMichael B. Clark, Daniel S. Venolia
Original AssigneeApple Computer, Inc.
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus and method for providing different input device orientations of a computer system
US 5469194 A
Abstract
In a computer system having an input device for controlling a position of a cursor on a display screen, a method of compensating for a physical orientation of the input device relative to the display screen. Initially, the physical orientation of the input device in relation to the display screen is determined. If the input device has been rotated, a first set of values corresponding to movement in the X axis is swapped with a second set of values corresponding to movement in the Y axis. Next, the sign of the first set of values corresponding to the Y axis is changed. Thereby, a horizontal movement indicated by the rotated input device produces a horizontal movement of the cursor. Likewise, a vertical movement indicated by the rotated input device corresponds to a vertical movement of the cursor.
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Claims(14)
What is claimed is:
1. In a computer system having an input device for controlling a position of a cursor on a display screen, a method of compensating for a physical orientation of said input device relative to said display screen, said method comprising the steps of:
determining said physical orientation of said input device in relation to said display screen;
if said input device has a horizontal orientation, transmitting a first set of values corresponding to an X axis and a second set of values corresponding to a Y axis generated by said input device to said computer system, wherein a horizontal movement indicated by said input device corresponds to a horizontal movement of said cursor and a vertical movement indicated by said input device corresponds to a vertical movement of said cursor;
if said input device has a vertical orientation:
exchanging said first set of values generated by said input device with said second set of values generated by said input device, wherein said second set of values correspond to said X axis and said first set of values correspond to said Y axis;
changing a sign of said first set of values corresponding to said Y axis;
transmitting said first set of values corresponding to said Y axis and said second set of values corresponding to said X axis, wherein a horizontal movement indicated by said input device in said vertical orientation corresponds to a horizontal movement of said cursor and a vertical movement indicated by said input device in said vertical orientation corresponds to a vertical movement of said cursor.
2. The method of claim 1 further comprising the steps of:
reading identifications of input devices coupled to said computer system to determine which of said input devices is to be rotated;
reading a service routine address corresponding to said input device to be rotated;
writing said service routine address to a known location;
calling a patch code for performing said exchanging and said changing steps;
returning to said service routine based on said service routine address that was stored.
3. The method of claim 1 further comprising the step of masking out a button state.
4. The method of claim 1, wherein said input device is comprised of a touch sensitive device.
5. The method of claim 1, wherein said input device is comprised of a mouse.
6. The method of claim 1, wherein said input device is comprised of a trackball.
7. The method of claim 1, wherein said computer system is comprised of a laptop computer.
8. The method of claim 7, wherein said input device is comprised of a touchpad residing below a keyboard of said laptop computer.
9. A method of controlling a cursor movement on a computer screen of a computer system in relation to commands received by an input device, wherein said cursor movement tracks movement detected by said input device regardless of a physical orientation of said input device with respect to said computer system, said method comprising of the steps of:
determining whether said input device coupled to said computer system is in a rotated orientation;
if said input device is in said rotated orientation:
swapping a first set of data corresponding to movement in a first axis with a second set of data corresponding to movement in a second axis;
changing a sign of said second set of data;
transmitting said first set of data and said second set of data after performing said swapping and said changing steps to said computer system, wherein movement in said first axis detected by said input device which has been rotated is translated into movement of said cursor in said first axis and movement in said second axis detected by said input device which has been rotated is translated into movement of said cursor in said second axis.
10. The method of claim 9 further comprising the steps of:
reading a service routine address corresponding to said input device to be rotated;
writing said service routine address to a known location;
calling a patch code for performing said swapping and said changing steps;
returning to said service routine based on said service routine address that was stored.
11. The method of claim 9 further comprising the step of masking out a button state.
12. The method of claim 9, wherein said input device is comprised of a touch sensitive device placed below a keyboard of a laptop computer.
13. The method of claim 9, wherein said input device is comprised of a mouse.
14. The method of claim 9, wherein said input device is comprised of a trackball.
Description
FIELD OF THE INVENTION

The present invention pertains to the field of input devices for controlling cursor movement on a computer display. More particularly, the present invention relates to an apparatus and method for providing different input device orientations of a computer system.

BACKGROUND OF THE INVENTION

Presently, computer systems such as personal computers, workstations, laptops, notebook computers, etc. are experiencing ever increasing popularity due to their increased processing power, speed, versatility, and economy. With the virtual explosion in the number and the different types of computer systems, there has been a corresponding degree of demand for input devices used to facilitate the human interaction with these computer systems. In the past, the primary input device simply consisted of a keyboard. The human operator entered data by typing on alpha-numeric, special function, and arrow keys from the keyboard. The entered data was usually displayed on a computer screen.

Subsequently, a more sophisticated and user-friendly interface encompassing the use of a cursor to perform editing and selection functions was developed. Typically, an input device coupled to the computer system is manipulated by the user to control the movement of the cursor on the display screen. One or more buttons are used to perform the desired selection functions. For example, a user can place a cursor over an icon displayed on the computer screen. Thereupon, the icon can be selected by clicking the button. This "point-and-click" feature has proven to be extremely popular and has gained wide acceptance.

There are several different types of input devices for controlling the cursor that are commercially available today. These input devices can take many different forms, such as a mouse, a trackball, a joystick, a writing pen, a stylus tablet, to name a few. One of the most promising and exciting new developments in the future of input devices is the use of touchpads. Touchpads sense the inherent capacitance associated with a user's finger. Thereby, a cursor can be controlled according to the movement of a user's finger. In other words, a user can simply trace a finger across the touchpad. The computer mimics this movement and drags the cursor across the screen to any desired location.

Typically, the computer has a rectangular shaped screen. In most instances, the width of the computer screen is greater than its height. In an effort to track the general contour of the computer screen, trackpads are usually designed to also be rectangular. Thereby, movement along the X-axis of the touchpad causes the cursor on the computer screen to move horizontally, and movement along the Y-axis of the touchpad produces a vertical cursor movement.

However, when implementing a touchpad or some other type of input device in various computer systems, there might be instances wherein it is difficult or impossible to incorporate the touchpad in its preferred or suggested orientation. For example, in the layout of laptop computers, the various components are typically crammed together in order to minimize its size. There might not be enough room to physically fit the touchpad in the limited amount of space available.

One possible solution is to rotate the trackpad to an orientation so that it can be accommodated by the surrounding components. However, the problem one now faces is how to design the touchpad so that it acknowledges that its orientation has been rotated and adapts to its new orientation accordingly. For example, if the touchpad is rotated 90 degree so that its height is greater than its width, the touchpad should recognize vertical movements as being vertical rather than horizontal and vice versa. In other words, once the touchpad has been rotated, its sense lines should be horizontal, and its trace lines should be vertical.

Hence, there exists a need in the prior art for an apparatus and method that provides for different orientations of a touchpad or other similar input devices so that cursor movements will be correctly traced on the computer screen. It would be highly preferable if such an apparatus and method were to operate transparent to the user.

SUMMARY OF THE INVENTION

The present invention pertains to a method of compensating for a physical orientation of an input device in relation to a computer system. The method provides that the cursor movement displayed on the computer screen tracks the movement indicated by the input device, irrespective of the orientation of the input device. Initially, the physical orientation of the input device in relation to the display screen is determined. If the input device has been rotated, a first set of values corresponding to movement in the X axis is swapped with a second set of values corresponding to movement in the Y axis. Next, the sign of the first set of values corresponding to the Y axis is changed. Thereby, a horizontal movement indicated by the rotated input device produces a horizontal movement of the cursor. Likewise, a vertical movement indicated by the rotated input device corresponds to a vertical movement of the cursor.

In one embodiment, a patch code is called by a service routine. The patch code masks out the button(s). Next, it swaps the X and Y values generated by the input device and changes the sign of the new Y values. These new X and Y values are then substituted in place of the old X and Y values. Thereupon, the code returns to the service routine. Hence, these operations are transparent to the user.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is illustrated by way of example, and not by way of limitation, in the figures of the accompanying drawings and in which like reference numerals refer to similar elements and in which:

FIG. 1 shows the computer system upon which a preferred embodiment of the present invention is implemented.

FIG. 2 shows a perspective view of a computer system having a horizontally oriented rectangular touchpad.

FIG. 3 shows a perspective view of a computer system having a vertically oriented rectangular touchpad.

FIG. 4 shows an example of a touch sensitive input device as may be utilized by the present invention.

FIG. 5A shows the coordinate system corresponding to a horizontally oriented input device.

FIG. 5B shows the coordinate system corresponding to a vertically oriented input device.

FIG. 6 is a flowchart describing the steps for handling an interrupt service routine associated with an ADB protocol.

FIG. 7 is a flowchart describing the steps for installing an orientation patch code.

FIG. 8 shows a flowchart describing the steps performed by the patch code.

DETAILED DESCRIPTION

An apparatus and method for providing different input device orientations is described. In the following description, for purposes of explanation, numerous specific details are set forth, such as angle of rotation, service routine, patch code, etc., in order to provide a thorough understanding of the present invention. It will be obvious, however, to one skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and devices are shown in block diagram form in order to avoid unnecessarily obscuring the present invention. Although the following description is in relation to a touchpad, it will be appreciated that the present invention pertains to other types of input devices and can be implemented by a variety of different mechanisms.

Referring to FIG. 1, the computer system upon which a preferred embodiment of the present invention is implemented is shown as 100. Computer system 100 is comprised of a bus or other communication means 101 for communicating information. A microprocessor 102 is coupled with bus 101 for processing digital data. Computer system 100 is further comprised of a random access memory (RAM) or some other dynamic storage device 104 (referred to as main memory), which is also coupled to bus 101. Main memory 104 is used to store digital data and program instructions to be executed by processor 102. Main memory 104 also may be used for storing temporary variables or other intermediate information during execution by processor 102. Computer system 100 also includes a read only memory (ROM) and/or other static storage device 106 coupled to bus 101 for storing static information and instructions for processor 102. In addition, a data storage device 107 such as a magnetic disk or optical disk and its corresponding disk drive may also be included.

Computer system 100 may further include a display device 121, such as a cathode ray tube (CRT) or liquid crystal display (LCD) coupled to bus 101 for displaying information to a computer user. An alphanumeric input device 122 (e.g., a keyboard) may also be coupled to bus 101 for communicating information and command selections to processor 102. An additional user input device which may be coupled to bus 101 is cursor control 123. Input device 123 may take many different forms, such as a mouse, a trackball, stylus, touchpad, etc. Another device which may be coupled to bus 101 is hard copy device 124 which may be used for printing a hard copy on paper. It should be noted that any or all of the components of computer system 100 and associated hardware may be used in conjunction with the present invention. However, it is appreciated that any type of configuration of the system may be used for various purposes as the user requires.

In the currently preferred embodiment, computer system 100 is one of the Macintosh® family of personal or laptop computers such as the Macintosh® Quadra®, Performa®, Powerbook®, etc. brand personal computers manufactured by Apple® Computer, Inc. of Cupertino, Calif. (Apple, Macintosh, Quadra, Performa, and Powerbook are registered trademarks of Apple Computer, Inc.). Processor 102 is one of the 68000 families of microprocessors, such as the 68030 or 68040 manufactured by Motorola, Inc. of Schaumburg, Ill.

FIG. 2 shows a perspective view of a computer system 201 having a horizontally oriented rectangular touchpad 202. Personal computer 201 includes a keyboard 203, palm rests 204, display screen 205 and touchpad 202. Finger movements detected by touchpad 202 is used to control the movement of cursor 206 on screen 205. Although computer 201 can be any of a variety of computers, in the presently preferred embodiment, it is comprised of a laptop computer which is a single, integrated unit with all of its elements placed within one case and which is small enough to fit onto a user's lap. Inside computer system 201 reside all the essential and well known electronic circuitry for the computer's operation, such as CPU, memory, hard and/or floppy disk drive, I/O circuitry, and power supply.

FIG. 3 shows a perspective view of a computer system 301 having a vertically oriented rectangular touchpad 302. Essentially, the vertically oriented touchpad 302 has been rotated 90 degrees clockwise in reference to the horizontally oriented touchpad shown in FIG. 2.

FIG. 4 shows an example of a touch sensitive input device 401 as may be utilized by the present invention. The touch sensitive input device 401 is comprised of a virtual electrode pad 402, an electrical balance measurement circuit 403, balance ratio determination circuit 404, and control circuit 405. In one embodiment, the virtual electrode pad 402 is in the shape of a rectangular sheet. It is capable of forming "virtual electrodes" at various positions on its top and bottom surfaces. These electrodes are denoted as "virtual electrodes" since separate conductive strips on the two sides of pad 402 are used to form single elements denoted as "virtual electrodes." The virtual electrodes are connected to electronic circuitry capable of measuring the electrical balance between selected top and bottom virtual electrodes.

A balance ratio determination circuit 404 is provided to determine the ratio of one balance measurement to another. Control circuit 405 selects appropriate electrodes for balance measurement and ratio determination. The control circuit 405 responds to balance ratios to calculate position information of the sensed object (e.g., finger 406). This information may include position along one or two axes parallel to the electrode pad surface. Additional "proximity" information along an axis perpendicular to the surface of electrode pad 402 may also be determined from an appropriate balance measurement. Position information determined by control circuit 405 is provided to a utilization means 407 which may be any of a variety of electronic or computer devices.

A finger 406 is shown located with its tip in close proximity to the top surface of electrode pad 402. The position of the finger tip over some region in the x and y directions may be sensed, as may its proximity in the z direction by virtual electrode pad 402. The touch sensitive input device 401 may provide information indicative of an operator's finger position to a computer, similar to the function commonly performed by a computer mouse. The device 401 may be a separate pad which could be held in the hand, placed on a desktop, or built into the computer keyboard.

FIG. 5A shows the coordinate system corresponding to a horizontally oriented input device. It can be seen that the origin (0,0) resides in the upper leftmost point. Horizontal movement to the right of the origin corresponds to increasing positive X values. Likewise, a downwards vertical movement with respect to the origin corresponds to increasing positive Y values.

FIG. 5B shows the coordinate system corresponding to a vertically oriented input device. In other words, the touchpad of FIG. 5B is the same as that of FIG. 5A, except that it has been physically rotated counterclockwise by 90 degrees. It can be seen that the origin (0,0) resides in the lower leftmost point. Horizontal movement to the right of the origin corresponds to increasing positive Y values. Likewise, an upwards vertical movement with respect to the origin corresponds to increasing positive X values.

Basically, the "rotated" data corresponding to the rotated touchpad is "unrotated" by swapping the X and Y values generated by the device and then changing the sign of the new Y values. In the currently preferred embodiment, a software patch is installed in the service routine of a bus protocol (e.g., Apple Desktop Bus--ADB) corresponding to that particular input device. This patch includes a rotation code that intercepts the X and Y data from the input device. This data is "unrotated" and the new "unrotated" data is stuffed back over the top of the original X and Y data. Thereupon, the original service routine is called. The computer system is informed of the switch in rotation through a control panel. A user can select an icon corresponding to the input device to be rotated.

FIG. 6 is a flowchart describing the steps for handling an interrupt service routine associated with an ADB protocol. When commanded by the computer system, the microcontroller enters the interrupt, step 601. An ADB command is received, step 602. Thereupon, the microcontroller determines whether the received command is valid, step 603. If the received command happens to be invalid, the microcontroller returns from the interrupt with an error, step 621. Otherwise, the microcontroller determines whether the command was addressed to it, step 604. If the microcontroller was not addressed, the command is ignored and the microcontroller returns from the interrupt, step 621.

If, however, the microcontroller is being addressed, the microcontroller either talks or listens to one of the four ADB defined registers as specified by the command, steps 605-620. In step 605, a determination is made as to whether the received command specifies that the microcontroller talk to Register 0. Register 0 is used to store communication information that pertains to all of the different types of input devices (e.g., mouse, trackball, touchpad, etc.). If the microcontroller is commanded to talk to Register 0, then steps 606-608 are executed. In step 606, the pointer of the transmit TX buffer is checked to determine whether that buffer is currently empty. The TX buffer is comprised of a first-in-first-out FIFO buffer. If there is no data in the TX buffer, the microcontroller returns from the interrupt, step 621. However, if the TX buffer is not empty, the first two bytes in the TX buffer is sent over the ADB bus to the computer system, step 607. Thereupon, the data that had just been sent is removed from the TX buffer, step 608. At the end of step 608, the microcontroller returns from the interrupt, step 621.

In step 609, a determination is made as to whether the received command specifies that the microcontroller talk to Register 1. Register 1 is used to store information pertaining to an extended ADB mode. Some examples of the information that can be stored in Register 1 include the device ID, the resolution, the class, the number of buttons, etc. If the command specifies that the microcontroller talk to Register 1, step 610 is performed. Otherwise, the process proceeds to step 611. In step 610, the information stored in Register 1 is sent over the ADB bus to the computer system. At the completion of this transmission, the microcontroller returns from the interrupt, step 621.

In step 611, a determination is made as to whether the received command specifies that the microcontroller talk to Register 2. If so, step 612 is executed. Otherwise, the process proceeds to step 613. In step 612, a defined bank of touchpad parameters in Register 2 is sent to the computer system via the ADB bus. Thereupon, the microcontroller returns from the interrupt, step 621.

In step 613, a determination is made as to whether the received command specifies that the microcontroller talk to Register 3. If so, step 614 is executed. Otherwise, the process proceeds to step 614. In step 614, the data stored in Register 3 is sent to the computer system via the ADB bus. Examples of data that can be stored in Register 3 include the Handler ID, data for resolving address conflicts, collision detection and resolution, etc. Once this data has been sent, the microcontroller returns from the interrupt, step 621.

In steps 615-616, a determination is made as to whether the received command specifies that the microcontroller listen to Register 0 or 1. If so, the microcontroller returns from the interrupt, step 621. Otherwise, the process proceeds to step 617.

In step 617, a determination is made as to whether the received command specifies that the microcontroller listen to Register 2. If so, the microcontroller takes the data supplied by the computer system on the ADB bus and loads it into Register 2. Some examples of the data that can be stored into Register 2 at the command of the computer system include smoothing parameters, filtering coefficients, Z-tracking threshold values, raw (X, Y, and Z) data, etc. Once this data has been loaded into Register 2, the microcontroller returns from the interrupt, step 621.

Finally, in step 3, a determination is made as to whether the received command specifies that the microcontroller listen to Register 3. This command is usually performed at boot-up. Register 3 data may include a different Handler ID, enabling the interrupt service routine, a change in address, etc. This data is supplied by the computer system via the ADB bus and stored in Register 3 by the microcontroller, step 620. Thereupon, the microcontroller returns from the interrupt, step 621.

The orientation patch code is installed in an INIT which is part of the device's control panel. FIG. 7 is a flowchart describing the steps for installing an orientation patch code. Initially, a loop is performed whereby the ADBDataBlock is read for each installed device, steps 701-702. The loop searches for an original ADB address and handler ID that matches that of the input device which is to be rotated. Once the device is found, its ADB address is temporarily stored, step 703. Furthermore, its service routine address is read from the ADBDataBlock, step 704. Next, the code resource that contains the orientation patch code is loaded and locked, step 705. Its address is retrieved, step 706.

Thereupon, the input device's ADB address and its original service routine address are put in a location where the patch code can find it, step 707. For example, these addresses can be written to a few reserved bytes at the beginning of the patch. The patch code's address is then stuffed into the ADB device table by calling the SetADBInfo() subroutine with the new data, step 708. Finally, the ADBReInit procedure can repeat steps 701-708 described above after the computer system comes out of a sleep mode, step 709. Henceforth, the orientation patch code will be called each time the input device sends data, step 710.

The orientation patch code performs the following functions. Referring to FIG. 8, a flowchart describing the steps performed by the patch code is shown. When the patch code is initially called, step 801, it confirms that the command is a TALK R0 from the input device to be rotated, step 802. The ADB Manager then passes the ADB command that performed the call operation to D0, step 803. This can be accomplished by a compare operation. Next, the button states are masked out, step 804. The original TALK data is read, step 805. Thereupon, the original X and Y values are swapped, step 806. The signs of the new Y values are then changed, step 807. Afterwards, these new X and Y values are stuffed back in place of the original values, while preserving the button states, step 808. Finally, a jump to the originally saved service routine address is performed, step 809.

It should be appreciated that the present invention also applies to those orientations other than vertical and horizontal. For example, if the touchpad, mouse, trackball, pen, or grid-based input device were physically rotated by 30 degrees, the new X values can be calculated by determining the cosine of 30° multiplied by the original X values. Similarly, the new Y values are equal to the sine of 30° multiplied by the original Y values.

An example of how the data is to be manipulated for a vertically oriented touchpad is described below. The original data is shown below in Table 1.

              TABLE 1______________________________________Byte Bit #7      6      5     4    3   2    1   0______________________________________0    b0    y6     y5  y4   y3  y2   y1  y0       ←1                                                 (a0)1    b1    x6     x5  x4   x3  x2   x1  x0   ←                                            2    (a0)2    b2    y9     y8  y7   b3  x9   x8  x7       ←3                                                 (a0)______________________________________

This data is pointed to by the A0 register. The Talk register 0 commands have three bytes as shown. The byte b0 corresponds to the button state. Bytes b1, b2, and b3 are not used. The data bits x0-x9 and y0-y9 represent the ten bits of relative axis movement. After the orientation patch code has manipulated this data, it now appears as shown in Table 2 below.

                                  TABLE 2__________________________________________________________________________Byte Bit #7     6  5   4  3   2  1   0__________________________________________________________________________0  b0 x6 x5  x4 x3  x2 x1  x0    ←1                               (a0)1  b1 -y6    -y5 -y4           -y3 -y2                  -y1 -y0                         ←                            2  (a0)2  b2 x9 x8  x7 b3  -y9                  -y8 -y7   ←3                               (a0)__________________________________________________________________________

Thus, an apparatus and method for providing different input device orientations of a computer system is described.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US5115107 *Jan 11, 1991May 19, 1992Ncr CorporationMethod of correcting skew between a digitizer and a digital display
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US5729219 *Aug 2, 1996Mar 17, 1998Motorola, Inc.Selective call radio with contraposed touchpad
US5748185 *Jul 3, 1996May 5, 1998Stratos Product Development GroupTouchpad with scroll and pan regions
US5796492 *Mar 20, 1996Aug 18, 1998Agfa Division, Bayer CorporationRotatable control panel for a scanner
US5914702 *Mar 4, 1996Jun 22, 1999Hewlett-Packard CompanyPointing device with wrap-around buttons
US5920310 *Nov 15, 1996Jul 6, 1999Synaptics, IncorporatedElectronic device employing a touch sensitive transducer
US5943044 *May 15, 1997Aug 24, 1999Interlink ElectronicsForce sensing semiconductive touchpad
US5953199 *Oct 14, 1997Sep 14, 1999Owens; SteveComputer touch pad cover and method
US5982358 *Sep 17, 1997Nov 9, 1999Micron Electronics, Inc.Method for providing buttons for use with multiple pointing devices on a laptop computer
US6020878 *Jun 1, 1998Feb 1, 2000Motorola, Inc.Selective call radio with hinged touchpad
US6037929 *Aug 19, 1997Mar 14, 2000Alps Electric Co., Ltd.Coordinate input system and method of controlling same
US6054979 *Aug 21, 1996Apr 25, 2000Compaq Computer CorporationCurrent sensing touchpad for computers and the like
US6096984 *Jan 21, 1997Aug 1, 2000Dell Usa, L.P.Adjustable touchpad
US6151012 *Jul 25, 1998Nov 21, 2000Bullister; EdwardMultifunctional portable computing device with special housing
US6181325 *Feb 11, 1998Jan 30, 2001Samsung Electronics Co., Ltd.Computer system with precise control of the mouse pointer
US6259438Jun 4, 1998Jul 10, 2001Wacom Co., Ltd.Coordinate input stylus
US6278443Apr 30, 1998Aug 21, 2001International Business Machines CorporationTouch screen with random finger placement and rolling on screen to control the movement of information on-screen
US6304431 *Sep 8, 1998Oct 16, 2001Samsung Electronics Co., Ltd.Portable computer system having ergonomic keyboard and detachable display unit
US6323845 *Mar 6, 1995Nov 27, 2001Ncr CorporationSingle finger controlled computer input apparatus and method
US6344846Aug 4, 2000Feb 5, 2002Stephen P. HinesOptical retroreflective remote control
US6373235May 3, 2000Apr 16, 2002Clifford A. BarkerApparatus and method for determining the position and motion of an object and for precise measurement of phase-related values
US6392637Aug 13, 1998May 21, 2002Dell Usa, L.P.Computer system having a configurable touchpad-mouse button combination
US6396483 *Jun 28, 1996May 28, 2002Jeffrey H. HillerKeyboard incorporating multi-function flat-panel input device and/or display
US6429847Oct 28, 1999Aug 6, 2002Gateway, Inc.Translatable cursor actuator control for a portable computer
US6473069 *Nov 13, 1995Oct 29, 2002Cirque CorporationApparatus and method for tactile feedback from input device
US6498471Dec 18, 2001Dec 24, 2002A. Clifford BarkerApparatus and method for direct digital measurement of electrical properties of passive components
US6507338Sep 13, 2000Jan 14, 2003Dell Usa, L.P.Computer system having a configurable touchpad-mouse button combination
US6606244 *Sep 10, 1999Aug 12, 2003Saint Song Corp.Pointing device having computer host
US7109977Oct 5, 2003Sep 19, 2006T2D, Inc.Slipcover touch input apparatus for displays of computing devices
US7716008Mar 8, 2007May 11, 2010Nintendo Co., Ltd.Acceleration data processing program, and storage medium, and acceleration data processing apparatus for use with the same
US7774155Aug 15, 2008Aug 10, 2010Nintendo Co., Ltd.Accelerometer-based controller
US7850527Jul 13, 2004Dec 14, 2010Creative Kingdoms, LlcMagic-themed adventure game
US7889175Oct 24, 2007Feb 15, 2011Panasonic CorporationTouchpad-enabled remote controller and user interaction methods
US7896742Jul 13, 2007Mar 1, 2011Creative Kingdoms, LlcApparatus and methods for providing interactive entertainment
US7927216Sep 15, 2006Apr 19, 2011Nintendo Co., Ltd.Video game system with wireless modular handheld controller
US8031175Sep 23, 2008Oct 4, 2011Panasonic CorporationTouch sensitive remote control system that detects hand size characteristics of user and adapts mapping to screen display
US8130203May 31, 2007Mar 6, 2012Apple Inc.Multi-touch input discrimination
US8157651Jun 2, 2006Apr 17, 2012Nintendo Co., Ltd.Information processing program
US8243041Jan 18, 2012Aug 14, 2012Apple Inc.Multi-touch input discrimination
US8267786Aug 15, 2006Sep 18, 2012Nintendo Co., Ltd.Game controller and game system
US8269727Jan 3, 2007Sep 18, 2012Apple Inc.Irregular input identification
US8308563Apr 17, 2006Nov 13, 2012Nintendo Co., Ltd.Game system and storage medium having game program stored thereon
US8313379Sep 24, 2010Nov 20, 2012Nintendo Co., Ltd.Video game system with wireless modular handheld controller
US8314775Jul 3, 2006Nov 20, 2012Apple Inc.Multi-touch touch surface
US8330727Nov 14, 2006Dec 11, 2012Apple Inc.Generating control signals from multiple contacts
US8334846Nov 14, 2006Dec 18, 2012Apple Inc.Multi-touch contact tracking using predicted paths
US8363007 *Nov 6, 2008Jan 29, 2013Acer Inc.Method and touchpad interface device using light for displaying level
US8384675Jul 3, 2006Feb 26, 2013Apple Inc.User interface gestures
US8384684Dec 10, 2010Feb 26, 2013Apple Inc.Multi-touch input discrimination
US8409003Aug 14, 2008Apr 2, 2013Nintendo Co., Ltd.Game controller and game system
US8430753Mar 24, 2011Apr 30, 2013Nintendo Co., Ltd.Video game system with wireless modular handheld controller
US8441453Jun 5, 2009May 14, 2013Apple Inc.Contact tracking and identification module for touch sensing
US8456284Apr 9, 2012Jun 4, 2013Panasonic CorporationDirection and holding-style invariant, symmetric design, and touch- and button-based remote user interaction device
US8466880Dec 22, 2008Jun 18, 2013Apple Inc.Multi-touch contact motion extraction
US8466881Apr 10, 2009Jun 18, 2013Apple Inc.Contact tracking and identification module for touch sensing
US8466883May 1, 2009Jun 18, 2013Apple Inc.Identifying contacts on a touch surface
US8482533Jun 5, 2009Jul 9, 2013Apple Inc.Contact tracking and identification module for touch sensing
US8514183Nov 14, 2006Aug 20, 2013Apple Inc.Degree of freedom extraction from multiple contacts
US8531425Jul 27, 2012Sep 10, 2013Apple Inc.Multi-touch input discrimination
US8542210Feb 15, 2013Sep 24, 2013Apple Inc.Multi-touch input discrimination
US8576177Jul 30, 2007Nov 5, 2013Apple Inc.Typing with a touch sensor
US8698755Jul 30, 2007Apr 15, 2014Apple Inc.Touch sensor contact information
US8708824Mar 13, 2012Apr 29, 2014Nintendo Co., Ltd.Information processing program
US8729825 *Feb 1, 2013May 20, 2014Apple Inc.Active enclosure for computing device
US8736555Jul 30, 2007May 27, 2014Apple Inc.Touch sensing through hand dissection
US8791921Aug 19, 2013Jul 29, 2014Apple Inc.Multi-touch input discrimination
US20090160671 *Nov 6, 2008Jun 25, 2009Hung-Wu ShihMethod and touchpad interface device using light for displaying level
US20130147383 *Feb 1, 2013Jun 13, 2013Apple Inc.Active Enclosure for Computing Device
USRE40323Dec 3, 2002May 20, 2008Jae-Yong BaeTouch pad mounting device for electronic system
USRE43318Jul 18, 2007Apr 17, 2012Flatworld Interactives, LlcUser interface for removing an object from a display
CN100440118COct 9, 2005Dec 3, 2008华硕电脑股份有限公司Portable computer and its touch control board
WO1998006176A1 *Jul 23, 1997Feb 12, 1998Motorola IncSelective call radio with contraposed touchpad
WO1998037506A2 *Feb 10, 1998Aug 27, 1998Logitech IncTouch pad with scroll bar, command bar
Classifications
U.S. Classification345/173, 345/163, 345/167
International ClassificationG06F3/038, G06F1/16
Cooperative ClassificationG06F3/03547, G06F3/0488, G06F1/169, G06F3/038, G06F1/1616
European ClassificationG06F1/16P1F, G06F1/16P9P6, G06F3/0488, G06F3/0354P, G06F3/038
Legal Events
DateCodeEventDescription
Apr 27, 2007FPAYFee payment
Year of fee payment: 12
May 20, 2003FPAYFee payment
Year of fee payment: 8
May 20, 1999FPAYFee payment
Year of fee payment: 4
Jul 18, 1994ASAssignment
Owner name: APPLE COMPUTER, INC., CALIFORNIA
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:VENOLIA, DANIEL S.;REEL/FRAME:007096/0581
Effective date: 19940713
Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CLARK, MICHAEL R.;REEL/FRAME:007096/0583
Effective date: 19940630